Is the 390 high performance exhaust the same as 428 Cobra?
Is the 390 high performance exhaust the same as 428 Cobra? Although the 390 High Performance and 428 Cobra Jet exhaust manifolds may look the same, they are not the same casting. What it comes to factory cast-iron exhaust headers, Ford had it all over the competition with these early Galaxie 406/427 iron bananas. Found this pair at John Vermeersch’s Total Performance shop in Detroit, Michigan. What kind of exhaust manifold does a Ford truck have? Ford Trucks: 1965-'83 300 6-cylinder w/o thermactor emission; 1981-'85 351W both sides interchange; 1980-'85 302 left and right interchange; 1968-'76 360/390 Truck manifolds interchange....